HedFlex Check Valves

J&S HedFlex Check Valves are constructed with superior high grade rubber and superior polyester reinforcement to improve performance, operation, and life expectancy. There are many grades of rubber that vary in chemical make-up. The elastomer’s chemical make-up “the recipe“ determines cost, characteristics, durometer (hardness and stiffness), and quality of the rubber parts used to construct HedFlex Check Valves.

The HedFlex product line must have the proper durometer, for memory, and strength to allow it to operate under specific flow conditions, also to be strong enough to withstand the weight of water and specified back pressure. The exterior of the HedFlex Check Valves are coated to prevent damage from the ultraviolet rays of the sun. HedFlex Check Valves are fire retardant and treated so sea life will not adhere to it, and to prevent animals from eating it. The Hedflex Check Valve reinforcing plies, are a key factor in the construction of HedFlex Check Valves. J&S uses a polyester fabric reinforcement compared to less expensive nylon used by our leading competator. The polyester offers added strength to the product and will not wick fluids. Nylon Fabric is not as strong as polyester and will wick when exposed to liquids. This wicking action causes the rubber to delaminate and in-turn will cause the valve to fail. As a comparison Hedflex is like a tire rated for 80,000 miles of service it has a superior rubber compound and reinforcement than a tire rated for 40,000 miles of service. HedFlex Check Valve materials are equivilant to the materials used in the 80,000 mile tire.

Duckbill Check Valves versus the competition is similar. HedFlex Check Valves use a much higher grade of rubber than the leading competitors.

J&S HedFlex Duckbill Check Valve Sizes 1" - 96"

Model DBV-09-FL is designed to bolt to flanges. J&S HedFlex Check Valves are constructed with superior high grade rubber and superior polyester reinforcement to improve performance, operation, and life expectancy. There are many grades of rubber that vary in chemical make-up. The elastomer’s chemical make-up “the recipe“ determines cost, characteristics, durometer (hardness and stiffness), and quality of the rubber parts used to construct HedFlex Check Valves.

HedFlex Duckbill

Check Valve

Model DBV-09FL

Sizes:1”-96”

HedFlex Duckbill Check Valve: Sizes 1" - 96"

Model DBV-09-FSI is designed to insert in a pipe and bolt between two flanges.J&S HedFlex Check Valves are constructed with superior high grade rubber and superior polyester reinforcement to improve performance, operation, and life expectancy. There are many grades of rubber that vary in chemical make-up. The elastomer’s chemical make-up “the recipe“ determines cost, characteristics, durometer (hardness and stiffness), and quality of the rubber parts used to construct HedFlex Check Valves.

HedFlex Duckbill

Check Valve

Model

DBV-09-FL-FSI

Sizes:2”-96”

HedFlex Duckbill Check Valve: Sizes 1" - 96"

Model DBV-09-SO is designed to slip over the pipe and secured with stainless steel clamps.J&S HedFlex Check Valves are constructed with superior high grade rubber and superior polyester reinforcement to improve performance, operation, and life expectancy. There are many grades of rubber that vary in chemical make-up. The elastomer’s chemical make-up “the recipe“ determines cost, characteristics, durometer (hardness and stiffness), and quality of the rubber parts used to construct HedFlex Check Valves.

HedFlex Duckbill

Check Valve

Model

DBV-09-SO

Sizes:1”-96”

HedFlex Duckbill Check Valve: Sizes 1" - 96"

Model DBV-09-SI is designed to insert into existing pipe and secures in place with an inserted expandable stainless steel clamp. J&S HedFlex Check Valves are constructed with superior high grade rubber and superior polyester reinforcement to improve performance, operation, and life expectancy. There are many grades of rubber that vary in chemical make-up. The elastomer’s chemical make-up “the recipe“ determines cost, characteristics, durometer (hardness and stiffness), and quality of the rubber parts used to construct HedFlex Check Valves.

HedFlex Duckbill

Check Valve

Model DBV-09-SI

Sizes:2”-96”